Is it possible that the STS, given an (incorrect, too-slow) air-speed, after the AP was disengaged (perhaps because AC noticed the conflicting AIS and is following the QRH)....might then trim nose-down to compensate for the erroneous low airspeed? It does seem from the info thus far that there was a fairly abrupt nose-down shortly after TO?
If so that must be stressful for AC...?
Can STS be disengaged just like AP or AT?
Just wondering how much the pilots might have had to work against STS.
Thanks for such an informative forum.